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Diffstat (limited to 'src/lib/eu-config.h')
| -rw-r--r-- | src/lib/eu-config.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/src/lib/eu-config.h b/src/lib/eu-config.h new file mode 100644 index 00000000..f814604f --- /dev/null +++ b/src/lib/eu-config.h @@ -0,0 +1,203 @@ +/* Configuration definitions. + Copyright (C) 2008, 2009 Red Hat, Inc. + This file is part of Red Hat elfutils. + + Red Hat elfutils is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by the + Free Software Foundation; version 2 of the License. + + Red Hat elfutils is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License along + with Red Hat elfutils; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. + + In addition, as a special exception, Red Hat, Inc. gives You the + additional right to link the code of Red Hat elfutils with code licensed + under an Open Source Initiative certified open source license + (http://www.opensource.org/licenses/index.php) and to distribute linked + combinations including the two. Non-GPL Code permitted under this + exception must only link to the code of Red Hat elfutils through those + well defined interfaces identified in the file named EXCEPTION found in + the source code files (the "Approved Interfaces"). The files of Non-GPL + Code may instantiate templates or use macros or inline functions from + the Approved Interfaces without causing the resulting work to be covered + by the GNU General Public License. Only Red Hat, Inc. may make changes + or additions to the list of Approved Interfaces. Red Hat's grant of + this exception is conditioned upon your not adding any new exceptions. + If you wish to add a new Approved Interface or exception, please contact + Red Hat. You must obey the GNU General Public License in all respects + for all of the Red Hat elfutils code and other code used in conjunction + with Red Hat elfutils except the Non-GPL Code covered by this exception. + If you modify this file, you may extend this exception to your version + of the file, but you are not obligated to do so. If you do not wish to + provide this exception without modification, you must delete this + exception statement from your version and license this file solely under + the GPL without exception. + + Red Hat elfutils is an included package of the Open Invention Network. + An included package of the Open Invention Network is a package for which + Open Invention Network licensees cross-license their patents. No patent + license is granted, either expressly or impliedly, by designation as an + included package. Should you wish to participate in the Open Invention + Network licensing program, please visit www.openinventionnetwork.com + <http://www.openinventionnetwork.com>. */ + +#ifndef EU_CONFIG_H +#define EU_CONFIG_H 1 + +#ifdef USE_LOCKS +# include <pthread.h> +# include <assert.h> +# define rwlock_define(class,name) class pthread_rwlock_t name +# define RWLOCK_CALL(call) \ + ({ int _err = pthread_rwlock_ ## call; assert_perror (_err); }) +# define rwlock_init(lock) RWLOCK_CALL (init (&lock, NULL)) +# define rwlock_fini(lock) RWLOCK_CALL (destroy (&lock)) +# define rwlock_rdlock(lock) RWLOCK_CALL (rdlock (&lock)) +# define rwlock_wrlock(lock) RWLOCK_CALL (wrlock (&lock)) +# define rwlock_unlock(lock) RWLOCK_CALL (unlock (&lock)) +#else +/* Eventually we will allow multi-threaded applications to use the + libraries. Therefore we will add the necessary locking although + the macros used expand to nothing for now. */ +# define rwlock_define(class,name) class int name +# define rwlock_init(lock) ((void) (lock)) +# define rwlock_fini(lock) ((void) (lock)) +# define rwlock_rdlock(lock) ((void) (lock)) +# define rwlock_wrlock(lock) ((void) (lock)) +# define rwlock_unlock(lock) ((void) (lock)) +#endif /* USE_LOCKS */ + +/* gettext helper macro. */ +#define N_(Str) Str + +/* Compiler-specific definitions. */ +#define strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); + +#ifdef __i386__ +# define internal_function __attribute__ ((regparm (3), stdcall)) +#else +# define internal_function /* nothing */ +#endif + +#define internal_strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))) internal_function; + +#define attribute_hidden \ + __attribute__ ((visibility ("hidden"))) + +/* Define ALLOW_UNALIGNED if the architecture allows operations on + unaligned memory locations. */ +#if defined __i386__ || defined __x86_64__ +# define ALLOW_UNALIGNED 1 +#else +# define ALLOW_UNALIGNED 0 +#endif + +#if DEBUGPRED +# ifdef __x86_64__ +asm (".section predict_data, \"aw\"; .previous\n" + ".section predict_line, \"a\"; .previous\n" + ".section predict_file, \"a\"; .previous"); +# ifndef PIC +# define debugpred__(e, E) \ + ({ long int _e = !!(e); \ + asm volatile (".pushsection predict_data; ..predictcnt%=: .quad 0; .quad 0\n" \ + ".section predict_line; .quad %c1\n" \ + ".section predict_file; .quad %c2; .popsection\n" \ + "addq $1,..predictcnt%=(,%0,8)" \ + : : "r" (_e == E), "i" (__LINE__), "i" (__FILE__)); \ + __builtin_expect (_e, E); \ + }) +# endif +# elif defined __i386__ +asm (".section predict_data, \"aw\"; .previous\n" + ".section predict_line, \"a\"; .previous\n" + ".section predict_file, \"a\"; .previous"); +# ifndef PIC +# define debugpred__(e, E) \ + ({ long int _e = !!(e); \ + asm volatile (".pushsection predict_data; ..predictcnt%=: .long 0; .long 0\n" \ + ".section predict_line; .long %c1\n" \ + ".section predict_file; .long %c2; .popsection\n" \ + "incl ..predictcnt%=(,%0,8)" \ + : : "r" (_e == E), "i" (__LINE__), "i" (__FILE__)); \ + __builtin_expect (_e, E); \ + }) +# endif +# endif +# ifdef debugpred__ +# define unlikely(e) debugpred__ (e,0) +# define likely(e) debugpred__ (e,1) +# endif +#endif +#ifndef likely +# define unlikely(expr) __builtin_expect (!!(expr), 0) +# define likely(expr) __builtin_expect (!!(expr), 1) +#endif + +#define obstack_calloc(ob, size) \ + ({ size_t _s = (size); memset (obstack_alloc (ob, _s), '\0', _s); }) +#define obstack_strdup(ob, str) \ + ({ const char *_s = (str); obstack_copy0 (ob, _s, strlen (_s)); }) +#define obstack_strndup(ob, str, n) \ + ({ const char *_s = (str); obstack_copy0 (ob, _s, strnlen (_s, n)); }) + +#if __STDC_VERSION__ >= 199901L +# define flexarr_size /* empty */ +#else +# define flexarr_size 0 +#endif + +/* Calling conventions. */ +#ifdef __i386__ +# define CALLING_CONVENTION regparm (3), stdcall +# define AND_CALLING_CONVENTION , regparm (3), stdcall +#else +# define CALLING_CONVENTION +# define AND_CALLING_CONVENTION +#endif + +/* Avoid PLT entries. */ +#ifdef PIC +# define INTUSE(name) _INTUSE(name) +# define _INTUSE(name) __##name##_internal +# define INTDEF(name) _INTDEF(name) +# define _INTDEF(name) \ + extern __typeof__ (name) __##name##_internal __attribute__ ((alias (#name))); +# define INTDECL(name) _INTDECL(name) +# define _INTDECL(name) \ + extern __typeof__ (name) __##name##_internal attribute_hidden; +#else +# define INTUSE(name) name +# define INTDEF(name) /* empty */ +# define INTDECL(name) /* empty */ +#endif + +/* This macro is used by the tests conditionalize for standalone building. */ +#define ELFUTILS_HEADER(name) <lib##name.h> + + +#ifdef SHARED +# define OLD_VERSION(name, version) \ + asm (".globl _compat." #version "." #name "\n" \ + "_compat." #version "." #name " = " #name "\n" \ + ".symver _compat." #version "." #name "," #name "@" #version); +# define NEW_VERSION(name, version) \ + asm (".symver " #name "," #name "@@@" #version); +# define COMPAT_VERSION(name, version, prefix) \ + asm (".symver _compat." #version "." #name "," #name "@" #version); \ + __typeof (name) _compat_##prefix##_##name asm ("_compat." #version "." #name); +#else +# define OLD_VERSION(name, version) /* Nothing for static linking. */ +# define NEW_VERSION(name, version) /* Nothing for static linking. */ +# define COMPAT_VERSION(name, version, prefix) error "should use #ifdef SHARED" +#endif + + +#endif /* eu-config.h */ |